Tuma-1 Well, Lithologic Unit 3, 3565-3570 m: Albian - Cenomanian, Nigeria

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
informal Forma (informal PO) informal lawal
3 specimens
Cyathiditesw sp.
informal Smoothverrucose informal spore
informal Trilete informal Spore
informal Dinoflagellate informal cyst
Magnoliopsida
Tricolporites sp. Cookson 1947
Angiospermae - Austrobaileyales - Trimeniaceae
Cretacaeiporites scabratus Herngreen 1974
Cretacaeiporites mulleri Herngreen 1973
Cretacaeiporites polygonalis Herngreen 1974
Angiospermae
Triorites africaensis Jardiné and Magloire 1965
Retimonocolpites sp. Pierce 1961
Angiospermae - Malpighiales - Euphorbiaceae
Tricolporopollenites sp. Thomson and Pflug 1953
Tricolporopollenites informal spscl
Angiospermae
Monosulcites sp. Cookson and Couper 1953
Angiospermae - Gunnerales
Tricolpites sp. Couper 1953
Angiospermae - Buxales - Didymelaceae
Hexaporotricolpites emelianovi Boltenhagen 1967
Angiospermae
Afropollis jardinus Doyle et al. 1982
Polypodiopsida
Verrucosisporites sp. Potonie and Kremp 1954
Algae - Botryococcaceae
Botryococcus bruni
1 specimen
Cycadopsida - Gnetales
Elaterosporites klaszii Jardiné 1967
Ginkgoopsida - Ephedrales
Ephedripites multicostatus Brenner 1963
Equisetopsida - Cupressales
Inaperturopollenites sp. Potonié 1966
Equisetopsida - Cheirolepidiaceae
Classopollis sp. Pflug 1953
Classopollis brasiliensis Herngreen 1975
unclassified
Galeacornea clavis Stover 1963
Galeacornea causea Stover 1963
Monocolpites sp. Van der Hammen 1954
Dinophyceae - Peridiniales - Peridiniaceae
Senegalinium sp. Jain and Millepied 1973
synonym of Deflandrea
Senegalinium bicavatum Jain and Millepied 1971
Dinophyceae - Gonyaulacales
Batiacasphaera sp. Drugg 1970
see common names

Geography
Country:Nigeria State/province:Maiduguri
Coordinates: 12.1° North, 13.1° East (view map)
Paleocoordinates:5.4° South, 5.3° East
Time
Period:Cretaceous
Key time interval:Albian - Cenomanian Pollen zone:
Age range of interval:113.00000 - 93.90000 m.y. ago
Stratigraphy
Geological group:Bornu Basin Formation:Bima
Local section:Tuma-1 Well Local bed:3565-3570 m
Local order:top to bottom
Lithology and environment
Primary lithology:grading,bioturbation,fine,medium,ferruginous lithified argillaceous sandstone
Secondary lithology:planar lamination,fine,gypsiferous,gray lithified argillaceous "shale"
Lithology description: Lithologic unit III (3510-3620 m) heterolithic sand varying from sand, shale, gypsum to clay. The sandstone has the same textural properties to the massive sandstone body overlying it. The shale is dark grey in colour, fissile and moderately associated with about 30% gypsum content. However, the deepest sediment that probably overly the basement is sandy with minor clay (15%) content. Grain sizes vary from fine to granule, angular to rounded and generally moderately sorted.
Environment:lacustrine indet.
Taphonomy
Modes of preservation:original sporopollenin
Size of fossils:microfossils
Collection methods and comments
Collection excludes:all microfossils
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:139278
Authorizer:C. Jaramillo Enterer:G. Doria
Modifier:G. Doria Research group:paleobotany
Subset of collection #:139250
Created:2013-02-10 05:01:49 Last modified:2013-02-09 19:53:45
Access level:the public Released:2013-02-10 05:01:49
Creative Commons license:CC BY
Reference information

Primary reference:
44705. A. O. Ola-Buraimo and O. A. Boboye. 2011. Palynological Investigation of the Albian to Lower Cenomanian Bima Formation, Bornu Basin, Nigeria. World Applied Sciences Journal 12(7):1026-1033 [C. Jaramillo/G. Doria]